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This paper shows that pairwise PageRank orders emerge from two-hop walks. The main tool used here refers to a specially designed sign-mirror function and a parameter curve, whose low-order derivative information implies pairwise PageRank…

机器学习 · 计算机科学 2019-03-12 Ying Tang

Based on observations in the web-graph, the power-law hypothesis states that PageRank has a power-law distribution with the same exponent as the in-degree. While this hypothesis has been analytically verified for many random graph models,…

概率论 · 数学 2024-07-19 Florian Henning , Remco van der Hofstad , Nelly Litvak

Neural message passing algorithms for semi-supervised classification on graphs have recently achieved great success. However, for classifying a node these methods only consider nodes that are a few propagation steps away and the size of…

机器学习 · 计算机科学 2022-04-06 Johannes Gasteiger , Aleksandar Bojchevski , Stephan Günnemann

A large number of applications such as querying sensor networks, and analyzing protein-protein interaction (PPI) networks, rely on mining uncertain graph and hypergraph databases. In this work we study the following problem: given an…

数据结构与算法 · 计算机科学 2018-01-11 Charalampos E. Tsourakakis , Shreyas Sekar , Johnson Lam , Liu Yang

In this paper B-Rank, an efficient ranking algorithm for recommender systems, is proposed. B-Rank is based on a random walk model on hypergraphs. Depending on the setup, B-Rank outperforms other state of the art algorithms in terms of…

数据分析、统计与概率 · 物理学 2012-05-01 Marcel Blattner

The PageRank algorithm employed by Google quantifies the importance of each page by the link structure of the web. To reduce the computational burden the distributed randomized PageRank algorithms (DRPA) recently appeared in literature…

系统与控制 · 计算机科学 2013-05-15 Wenxiao Zhao , Han-Fu Chen , Hai-Tao Fang

Google employs PageRank to rank web pages, determining the order in which search results are presented to users based on their queries. PageRank is primarily utilized for directed networks, although there are instances where it is also…

物理与社会 · 物理学 2024-11-26 Krishanu Deyasi

Although click data is widely used in search systems in practice, so far the inherent bias, most notably position bias, has prevented it from being used in training of a ranker for search, i.e., learning-to-rank. Recently, a number of…

信息检索 · 计算机科学 2019-02-28 Ziniu Hu , Yang Wang , Qu Peng , Hang Li

Given a large graph, how can we determine similarity between nodes in a fast and accurate way? Random walk with restart (RWR) is a popular measure for this purpose and has been exploited in numerous data mining applications including…

社会与信息网络 · 计算机科学 2017-12-05 Minji Yoon , Jinhong Jung , U Kang

We propose a new method to estimate a root-directed spanning tree from extreme data. A prominent example is a river network, to be discovered from extreme flow measured at a set of stations. Our new algorithm utilizes qualitative aspects of…

机器学习 · 统计学 2023-12-29 Ngoc Mai Tran , Johannes Buck , Claudia Klüppelberg

Link directions are essential to the functionality of networks and their prediction is helpful towards a better knowledge of directed networks from incomplete real-world data. We study the problem of predicting the directions of some links…

物理与社会 · 物理学 2013-07-16 Fangjian Guo , Zimo Yang , Tao Zhou

Respondent driven sampling (RDS) is a method often used to estimate population properties (e.g. sexual risk behavior) in hard-to-reach populations. It combines an effective modified snowball sampling methodology with an estimation procedure…

统计方法学 · 统计学 2013-08-19 Jens Malmros , Naoki Masuda , Tom Britton

Given an input graph G and a node v in G, homogeneous network embedding (HNE) maps the graph structure in the vicinity of v to a compact, fixed-dimensional feature vector. This paper focuses on HNE for massive graphs, e.g., with billions of…

社会与信息网络 · 计算机科学 2020-06-24 Renchi Yang , Jieming Shi , Xiaokui Xiao , Yin Yang , Sourav S. Bhowmick

Recently bipartite graphs have been widely used to represent the relationship two sets of items for information retrieval applications. The Web offers a wide range of data which can be represented by bipartite graphs, such us movies and…

信息检索 · 计算机科学 2015-07-21 Antonia Korba

Sood and Grassberger studied in [Phys. Rev. Lett. 99, 098701 (2007)] random walks on random graphs that are biased towards a fixed target point. They put forward a critical bias strength b_c such that a random walker on an infinite graph…

统计力学 · 物理学 2009-11-13 O. Benichou , R. Voituriez

Unbiased learning to rank (ULTR), which aims to learn unbiased ranking models from biased user behavior logs, plays an important role in Web search. Previous research on ULTR has studied a variety of biases in users' clicks, such as…

信息检索 · 计算机科学 2025-08-29 Zechun Niu , Lang Mei , Liu Yang , Ziyuan Zhao , Qiang Yan , Jiaxin Mao , Ji-Rong Wen

In relation extraction, a key process is to obtain good detectors that find relevant sentences describing the target relation. To minimize the necessity of labeled data for refining detectors, previous work successfully made use of…

计算与语言 · 计算机科学 2016-09-19 Shinichi Nakajima , Sebastian Krause , Dirk Weissenborn , Sven Schmeier , Nico Goernitz , Feiyu Xu

We study random walk with adaptive move strategies on a class of directed graphs with variable wiring diagram. The graphs are grown from the evolution rules compatible with the dynamics of the world-wide Web [Tadi\'c, Physica A {\bf 293},…

统计力学 · 物理学 2009-11-07 Bosiljka Tadic

We provide a deterministic $\tilde{O}(\log N)$-space algorithm for estimating random walk probabilities on undirected graphs, and more generally Eulerian directed graphs, to within inverse polynomial additive error…

计算复杂性 · 计算机科学 2022-03-14 AmirMahdi Ahmadinejad , Jonathan Kelner , Jack Murtagh , John Peebles , Aaron Sidford , Salil Vadhan

Graph-structured data arise in wide applications, such as computer vision, bioinformatics, and social networks. Quantifying similarities among graphs is a fundamental problem. In this paper, we develop a framework for computing graph…

机器学习 · 统计学 2018-09-11 Zhen Zhang , Mianzhi Wang , Yijian Xiang , Yan Huang , Arye Nehorai